Rivetking FBUP-6/P500 Blind Rivet Backup Washer Size 6 500pk

Product Description

The RIVETKING FBUP-6/P500 is a stainless steel round blind rivet backup washer designed to distribute clamping load and prevent pull-through when setting blind rivets in soft, thin, or fragile base materials. At Size 6, this washer seats a 3/16 inch diameter rivet shank through a 0.187 inch inside diameter opening and spans 0.5 inches outside diameter, providing a broad bearing surface. The 1/16 inch thickness keeps the profile low while maintaining structural support. These washers are used by sheet metal workers, HVAC installers, electricians, and general contractors whenever a blind rivet must grip material that cannot support the rivet head alone.

These backup washers are suited for applications in light-gauge sheet metal assemblies, ductwork, electrical enclosures, equipment panels, and other installations where base material is prone to deformation under rivet clamping force. The stainless steel construction makes them appropriate for environments with moisture exposure or mild corrosion risk. Each package contains 500 washers, supporting higher-volume production or service work without frequent reordering.

Key Features

• Stainless steel construction resists corrosion in wet or outdoor-adjacent installations
• 0.5 inch outside diameter provides broad load distribution to protect soft or thin base materials
• 0.187 inch inside diameter sized for standard 3/16 inch blind rivets
• 1/16 inch thickness maintains a low profile in finished assemblies
• Size 6 designation for straightforward cross-referencing with rivet sizing charts
• 500-piece packaging supports production-volume and fleet service applications

Compatibility

Designed as an OEM-style replacement or supplemental hardware for use with Size 6, 3/16 inch diameter round blind rivets in sheet metal, panel, and ductwork assemblies.

Installation Notes

Place the backup washer on the blind side of the base material before inserting the rivet, ensuring the rivet shank passes through the washer inside diameter. This part is typically installed by sheet metal mechanics, HVAC technicians, and electricians using standard hand or pneumatic rivet tools. Verify base material compatibility and rivet grip range before setting. No special tooling beyond a properly sized rivet tool is required.